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view libtwamr/convolve.h @ 605:63f774192906

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gsmhr_decoder_twts002_in(): set BFI=1 SID=1 for invalid SID When a received TW-TS-002 RTP payload indicates invalid SID, which of the 3 possible BFI/SID combinations should we pass to our internal ETSI-based speech decoder or TFO engine? Our original code passed BFI=0 SID=1, but upon further reflection, BFI=1 SID=1 is a better choice. In the corner case where received invalid SID is fed to a full decoder in homed state, setting BFI=1 allows that decoder to emit zeros on PCM and stay homed, instead of launching into full decoding.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 21:01:46 +0000
parents e230a4a87bd8
children
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/*
********************************************************************************
*
*      GSM AMR-NB speech codec   R98   Version 7.6.0   December 12, 2001
*                                R99   Version 3.3.0                
*                                REL-4 Version 4.1.0                
*
********************************************************************************
*
*      File             : convolve.h
*      Purpose          : Perform the convolution between two vectors x[]
*                       : and h[] and write the result in the vector y[].
*                       : All vectors are of length L and only the first
*                       : L samples of the convolution are computed.
*
********************************************************************************
*/
#ifndef convolve_h
#define convolve_h "$Id $"
 
/*
********************************************************************************
*                         INCLUDE FILES
********************************************************************************
*/
#include "typedef.h"
 
/*
********************************************************************************
*                         DEFINITION OF DATA TYPES
********************************************************************************
*/
 
/*
********************************************************************************
*                         DECLARATION OF PROTOTYPES
********************************************************************************
*/
void Convolve (
    Word16 x[],        /* (i)  : input vector                               */
    Word16 h[],        /* (i)  : impulse response                           */
    Word16 y[],        /* (o)  : output vector                              */
    Word16 L           /* (i)  : vector size                                */
);
 
#endif